• play
  • pause
  • stop
  • mute
  • unmute
  • max volume
  • repeat
  • repeat off
  • 正在播放：355根据马斯洛的需求层次理论，生存第一，安全第二_演播：国学人文大叔
Update Required To play the media you will need to either update your browser to a recent version or update your Flash plugin.